4-Iodo-1-methylpyridin-2(1H)-one → (6S)-6-(2,3-dihydroxy-2-methylpropyl)-3-((S)-1-(4-(1-methyl-2-oxo-1,2-dihydropyridin-4-yl)phenyl)ethyl)-6-phenyl-1,3-oxazinan-2-one

HRID 1096344Notes

Reaction equation

HRID 1096344 reaction equation
[OH:1][C:2]([CH3:36])([CH2:34][OH:35])[CH2:3][C@@:4]1([C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)[O:9][C:8](=[O:10])[N:7]([C@H:11]([C:13]2[CH:18]=[CH:17][C:16](B3OC(C)(C)C(C)(C)O3)=[CH:15][CH:14]=2)[CH3:12])[CH2:6][CH2:5]1.I[C:38]1[CH:43]=[CH:42][N:41]([CH3:44])[C:40](=[O:45])[CH:39]=1>C([O-])([O-])=O.[Cs+].[Cs+].Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[OH:1][C:2]([CH3:36])([CH2:34][OH:35])[CH2:3][C@@:4]1([C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)[O:9][C:8](=[O:10])[N:7]([C@H:11]([C:13]2[CH:14]=[CH:15][C:16]([C:38]3[CH:43]=[CH:42][N:41]([CH3:44])[C:40](=[O:45])[CH:39]=3)=[CH:17][CH:18]=2)[CH3:12])[CH2:6][CH2:5]1

Participants

5

Reactant 2

HCID 534080094-Iodo-1-methylpyridin-2(1H)-oneHCID 59635790(S)-6-(2,3-dihydroxy-2-methylpropyl)-6-phenyl-3-((S)-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethyl)-1,3-oxazinan-2-one

Product 1

HCID 66600796(6S)-6-(2,3-dihydroxy-2-methylpropyl)-3-((S)-1-(4-(1-methyl-2-oxo-1,2-dihydropyridin-4-yl)phenyl)ethyl)-6-phenyl-1,3-oxazinan-2-one

Reagents, catalysts & solvents 2

HCID 178418476HCID 178418476, compoundCatalystHCID 10796Cesium carbonateSolvent

Procedure

A mixture of (S)-6-(2,3-dihydroxy-2-methylpropyl)-6-phenyl-3-((S)-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethyl)-1,3-oxazinan-2-one (105 mg, 211.9 mmol), 4-iodo-1-methylpyridin-2(1H)-one (65 mg, 275.5 mmol), Pd(PPh3)2Cl2 (20 mg) in aq. Cs2CO3 solution (3 mL) was stirred at reflux for 2 h. After the reaction was finished, the mixture was washed with water and extracted with EtOAc. The organic layer was dried over Na2SO4 and concentrated to give the crude product, which was purified by preparative HPLC to afford two isomers of (6S)-6-(2,3-dihydroxy-2-methylpropyl)-3-((S)-1-(4-(1-methyl-2-oxo-1,2-dihydropyridin-4-yl)phenyl)ethyl)-6-phenyl-1,3-oxazinan-2-one

Workup

  1. temperatureat reflux for 2 h
  2. washthe mixture was washed with water
  3. extractionextracted with EtOAc
  4. dry with materialThe organic layer was dried over Na2SO4
  5. concentrationconcentrated
  6. customto give the crude product, which
  7. customwas purified by preparative HPLC

Sources & evidence

ORD record
ord-13892805a6ff4facbf98e37cba696626
Source dataset
uspto-grants-2012_03
Patent number
US08138178B2

Reaction notes

Loading…